Lin Gonggong held Ruyi in his hand, and carefully took out an emerald green one from his closet, and compared the two, all of which were the same in size and shape.

"Thank you Han Xianshi, I rescued Lord Wang's family, and I can be regarded as a stay, maybe I can have something to say in the face of my ancestors. Father-in-law Lin had muddy tears in his eyes, and he wanted to bow down.

Before he knelt down, he felt an invisible force dragging his body, and he was shocked only to hear Han Yu say lightly: "Father-in-law doesn't have to be like this, we are just waiting for the exchange." What my father-in-law told me to do is done, is it time to fulfill your promise?"

"Immortal Master Han, I'll take you over. Gonggong Lin only felt that the strength was dragging him, making him unable to kneel, so he stood up straight and hugged his fist at Han Yu.

Gonggong Lin went to instruct the little eunuch and arranged the tedious matters of the imperial study. The emperor is busy with government affairs, and even if he needs any books, he will send eunuchs to get them, and he will not come in person.

"Master Han Xian, please come with me, although our family is a eunuch, we also talk and count, and we won't talk about it. Father-in-law Lin arranged everything properly, and then said respectfully.

Han Yu nodded, and followed with a hint of joy in his eyes.

After walking for about an hour, Gonggong Lin took Han Yu to a cold hall in the depths of the palace.

The road under my feet has been cleared for a long time, and some weeds have stubbornly grown. There are no eunuchs of all kinds, and there are no palace maids, and there is silence all around, a corner that has long been forgotten.

The vermilion paint on the door of the temple has faded, and there are several small holes in the door, which looks a little broken.

"Immortal Master Han, please come with me!" Grandpa Lin glanced at the surrounding buildings a few times and said with certainty.

Han Yu nodded, followed Gonggong Lin to the front of the hall, pushed open the door of the hall, disturbed a group of rats, and fled in fright.

The door of the temple opened, and it was found that the hall was dilapidated, and the main hall was empty, except for the black mouse feces piled up in the corner, exuding a disgusting strange smell.

"Master Han Xian, this is the former imperial study, when I just entered the palace, Gonggong Yuan took me here. Gonggong Lin looked at the dilapidated hall and said with a sigh.

"Master Han, the smell of this place is too strong, I'll let the little ones clean it up before entering." Grandpa Lin saw the rat feces and said hesitantly.

Immortal masters love cleanliness and definitely don't want to set foot in this filthy land.

Before Gonggong Lin could finish speaking, Han Yu had already walked into the hall with his feet raised, ignoring the strange smell and rat feces inside.

Han Yu and the mine rat have been getting along for a long time, and they have long been accustomed to this. He hid from the bitter lord in the town, where did he not hide from the pig's nest and cowshed?

Seeing that Han Yu was not disgusted, Gonggong Lin hurriedly followed, covered his nose and took Han Yu to the corner of the main hall, where an ordinary triangular stone was inlaid on the wall, which looked no different from an ordinary stubborn stone.

"Momen is really rich, and I'm afraid that most of the secret passages in the palace are designed by Momen. Han Yu saw the mechanism at a glance and muttered to himself.

Gonggong Lin handed the dust in his hand to Han Yu, and then grabbed the stone and turned it slowly, only to see him turn it five times, then three times in the opposite direction, and then two times in the opposite direction.

Only a "creaking" sound was heard from the stone tiles not far away, and a portal was opened on the floor, revealing a staircase going down.

"Immortal Master Han, you must not make a mistake in the rotation of this stone, as long as you twist one wrong step, the mechanism will be stuck, and if you want to restore it, you can only go to the main hub room of the palace. Father-in-law Lin took out the dust whisk and said with some difficulty.

Han Yu walked to the entrance of the cave and took a look, only to feel some rotten qi rushing in. So the two of them went out of the temple gate for the time being, and sat down to talk.

"Gonggong Lin, when did you come here?" Han Yu asked, looking at the desolate palace complex, turning his head.

"When I entered the palace at the age of twelve, the first errand I took was to move all the books here to the new imperial study. When Gonggong Yuan sent me to stay here, I saw a box of books at the bottom of the underground library, and I saw the immortal text you just showed me. Lin Gonggong's eyes showed a look of reminiscence.

Han Yu was slightly excited in his heart, sat in front of the hall and chatted for another half an hour, and walked towards the hall together.

The bookshelves on the first floor of the basement had also been emptied, and Gonggong Lin smiled at Han Yu and opened the mechanism on the second floor of the basement.

Han Yu didn't have the heart to continue waiting, so he took out a silver bottle from the storage bag and poured out a pink pill from it.

"Gonggong Lin, if you swallow this pill, you will be able to temporarily hold your breath for an hour, and there will be no harm to your body, so let's hurry up. Han Yu took the pill and said with a smile.

"Thank you, Immortal Master!"

When Gonggong Lin heard this, he didn't have the slightest doubt, took the pill, raised his head and swallowed it directly.

Han Yu also poured out one, swallowed it and walked down together.

This inner palace is really full of organs, and even the methods of cracking each layer of the mechanism in this abandoned imperial study are different, and a large hall does not know how much effort it takes to spend the people in the ink gate.

Half an hour later, Gonggong Lin broke through the mechanism on the sixth floor. This time, the secret room was not down, the neat stone wall opened silently, revealing a one-man high hole.

"The people in the Momen are really powerful, and the level of this skill has already reached its peak!" Han Yu looked at the entrance of the cave and couldn't help but admire.

"I've also heard that our palace is designed by the most elite disciples of Momen. I have heard rumors that there are countless exits to the outside world in the palace, and only the Holy One knows about it. In this hidden above-ground room, Gonggong Lin was also a little bolder, but when he said this, he still subconsciously looked left and waited.

Han Yu nodded and walked along the stone path.

This stone road is more than ten zhang long, and at the end is a stone house. There is also a bookshelf in the middle of the stone house, on which there are a few books.

Han Yu walked over with some excitement, and as soon as he approached the bookshelf, he smelled a strange fragrance.

"Yuan Yangmu?" Han Yu looked at the texture on it with some surprise and said with some surprise.

Han Yu carefully identified it and found that it was really Yuan Yangmu. This wood is the top ingredient for making puppets, it is strong and lightweight, and it can also absorb trace amounts of aura. However, this kind of wood is extremely difficult to grow, it takes 100 years to grow to the thickness of an adult's arm, and it takes at least 1,000 years to reach maturity.

This kind of wood has long been extinct, and even if it exists, it does not know that it grows in dangerous mountains and rivers.

Han Yu secretly thought in his heart that he wanted to take down this bookshelf and go, this thing would be of great use to him.

These few squares of wood can barely allow Han Yu to make a puppet, and the remaining sawdust can make Qing Teng remember this taste, and if he goes to a dangerous place to explore in the future, maybe he can encounter it!

Han Yu flashed the plan out of his mind, walked to the bookshelf, took the slightly heavy book in his hand, took a deep breath, and flipped through the pages.

Seeing the spiritual text above, Han Yu's eyes lit up, and his heart was overjoyed!

"Master Han Xian, our family has also fulfilled its promise. Gonggong Lin said respectfully.

Han Yu closed the book and said with a smile: "Thank you Father-in-law Lin, please wait outside." ”

Han Yu wanted to hit the idea of this bookshelf, so he naturally didn't want him to stay by his side. Although he shouldn't have said anything when he dismantled the bookshelf, there were many people around him, and he was always a little uncomfortable in his heart.

"Then our family will go and wait outside the stone road!" Grandpa Lin retreated very interestingly.

Han Yu saw him go away, and turned the pages of the book to read the immortal text, the book with dozens of pages was quickly flipped through by him, and Han Yu excitedly put it into the storage bag.

But as soon as he took a step, his face suddenly changed!

The book just now was written by Xianwen, but there is no annotation, and taking it back is just another immortal text that I can't understand!

Fine beads of sweat oozed from Han Yu's forehead, and he saw him flip through all the books on the shelf. I found that these books were also written in this kind of incomprehensible immortal script, and there was not even a single mark.

Han Yu wanted to burn the book in his hand into black ash with flames, but after thinking for a moment, he put it into the storage bag.

The secret room built by Momen, will there still be a hidden compartment here?

Han Yu looked at the bookshelf and a strange thought popped up in his mind.

In his possession is the Complete Book of Inkmen, and the last few pages of the book mention a variety of methods used to hide hidden compartments in secret rooms to protect the rarest of objects.

Han Yu patted the storage bag, and the Momen Quandian was already in his hand, Han Yu flipped through it quickly, and slowed down when he reached the last picture and text annotation.

Han Yu measured the length and width of the stone house with his feet, estimated the height again, and sat on the ground to compare them one by one.

After half a cup of tea, Han Yu's eyes lit up slightly, and he finally found a page that was extremely similar to the stone house he was staying in.

Although the people in Momen like to bring forth the new, but everything is not far from its origin, as long as there is this diagram, after careful scrutiny, you will definitely be able to find the means of the dark grid.

Fortunately, during the retreat, Han Yu would occasionally study the book. Reasoning backwards is not difficult for him.

After a while, Han Yu stood up and walked to a few places that had been reasoned out to explore and study.

Seeing that there was no gain, Han Yu took out a low-level magic weapon, carefully dismantled the bookshelf first, kept it as it was as it was, and then put all the wood into the storage bag.

After doing all this, Han Yu walked to the original bookshelf, gently tapped the ground with his hand, and listened to the muffled sound with his ears on the ground.

When the middle stone is hit, there is a slight crunch in the dullness. Han Yu was immediately overjoyed, and carefully knocked it a few times, and was sure that there was a dark grid below.

Han Yu sat directly on it, took out the diagram and studied it for a while, and then set his eyes on the stone corridor.

Standing up and walking over, there was a slightly raised stone brick on the rough stone wall, and even if you accidentally touched it, it would not be associated with the dark grid.

Han Yu did not hesitate and darkened gently.

The stone brick where it had just been had cracked silently.

Han Yu hurriedly walked over and looked at a shabby red cloth inside.

Eagerly brought it up to untie the red cloth, revealing a gold box.